Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1 | // Copyright 2010 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
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| 4 | // met: |
| 5 | // |
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| 8 | // * Redistributions in binary form must reproduce the above |
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| 10 | // disclaimer in the documentation and/or other materials provided |
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| 27 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 28 | // Flags: --allow-natives-syntax |
| 29 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 30 | // Test deopt with count operation on parameter. |
| 31 | var max_smi = 1073741823; |
| 32 | var o = {x:0}; |
| 33 | |
| 34 | function inc1(x) { x++; o.x = x; } |
| 35 | inc1(max_smi); |
| 36 | assertEquals(max_smi + 1, o.x); |
| 37 | |
| 38 | inc1(1.1); |
| 39 | assertEquals(2.1, o.x); |
| 40 | |
| 41 | |
| 42 | // Test deopt with count operation on named property. |
| 43 | function inc2(p) { p.x++ } |
| 44 | |
| 45 | o.x = "42"; |
| 46 | inc2(o); |
| 47 | assertEquals(43, o.x); |
| 48 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 49 | var s = max_smi - 10; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 50 | o.x = s; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 51 | for(var i = 0; i < 20; i++) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 52 | inc2(o); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 53 | if (i == 4) { |
| 54 | %OptimizeFunctionOnNextCall(inc2); |
| 55 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 56 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 57 | assertEquals(max_smi + 10, o.x); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 58 | |
| 59 | |
| 60 | // Test deopt with count operation on keyed property. |
| 61 | function inc3(a, b) { a[b]++; } |
| 62 | |
| 63 | o = ["42"]; |
| 64 | inc3(o, 0); |
| 65 | assertEquals(43, o[0]); |
| 66 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 67 | var s = max_smi - 10; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 68 | o[0] = s; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 69 | for(var i = 0; i < 20; i++) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 70 | inc3(o, 0); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 71 | if (i == 4) { |
| 72 | %OptimizeFunctionOnNextCall(inc3); |
| 73 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 74 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 75 | assertEquals(max_smi + 10, o[0]); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 76 | |
| 77 | inc3(o,"0"); |
| 78 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 79 | assertEquals(max_smi + 11, o[0]); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 80 | |
| 81 | // Test bailout when accessing a non-existing array element. |
| 82 | o[0] = 0; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 83 | for(var i = 0; i < 5; i++) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 84 | inc3(o, 0); |
| 85 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 86 | %OptimizeFunctionOnNextCall(inc3); |
| 87 | inc3(o, 0); |
| 88 | inc3(o, 1); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 89 | |
| 90 | // Test bailout with count operation in a value context. |
| 91 | function inc4(x,y) { return (x++) + y; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 92 | for (var i = 0; i < 5; ++i) assertEquals(3, inc4(2, 1)); |
| 93 | %OptimizeFunctionOnNextCall(inc4); |
| 94 | inc4(2, 1); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 95 | assertEquals(3.1, inc4(2, 1.1)); |
| 96 | |
| 97 | function inc5(x,y) { return (++x) + y; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 98 | for (var i = 0; i < 5; ++i) assertEquals(4, inc5(2, 1)); |
| 99 | %OptimizeFunctionOnNextCall(inc5); |
| 100 | assertEquals(4, inc5(2, 1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 101 | assertEquals(4.1, inc5(2, 1.1)); |
| 102 | assertEquals(4.1, inc5(2.1, 1)); |
| 103 | |
| 104 | function inc6(o,y) { return (o.x++) + y; } |
| 105 | o = {x:0}; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 106 | for (var i = 0; i < 5; ++i) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 107 | o.x = 42; |
| 108 | assertEquals(43, inc6(o, 1)); |
| 109 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 110 | %OptimizeFunctionOnNextCall(inc6); |
| 111 | o.x = 42; |
| 112 | assertEquals(43, inc6(o, 1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 113 | o.x = 42; |
| 114 | assertEquals(43.1, inc6(o, 1.1)); |
| 115 | o.x = 42.1; |
| 116 | assertEquals(43.1, inc6(o, 1)); |
| 117 | |
| 118 | function inc7(o,y) { return (++o.x) + y; } |
| 119 | o = {x:0}; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 120 | for (var i = 0; i < 5; ++i) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 121 | o.x = 42; |
| 122 | assertEquals(44, inc7(o, 1)); |
| 123 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 124 | %OptimizeFunctionOnNextCall(inc7); |
| 125 | o.x = 42; |
| 126 | assertEquals(44, inc7(o, 1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 127 | o.x = 42; |
| 128 | assertEquals(44.1, inc7(o, 1.1)); |
| 129 | o.x = 42.1; |
| 130 | assertEquals(44.1, inc7(o, 1)); |
| 131 | |
| 132 | function inc8(o,y) { return (o[0]++) + y; } |
| 133 | var q = [0]; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 134 | for (var i = 0; i < 5; ++i) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 135 | q[0] = 42; |
| 136 | assertEquals(43, inc8(q, 1)); |
| 137 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 138 | %OptimizeFunctionOnNextCall(inc8); |
| 139 | q[0] = 42; |
| 140 | assertEquals(43, inc8(q, 1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 141 | q[0] = 42; |
| 142 | assertEquals(43.1, inc8(q, 1.1)); |
| 143 | q[0] = 42.1; |
| 144 | assertEquals(43.1, inc8(q, 1)); |
| 145 | |
| 146 | function inc9(o,y) { return (++o[0]) + y; } |
| 147 | q = [0]; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 148 | for (var i = 0; i < 5; ++i) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 149 | q[0] = 42; |
| 150 | assertEquals(44, inc9(q, 1)); |
| 151 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 152 | %OptimizeFunctionOnNextCall(inc9); |
| 153 | q[0] = 42; |
| 154 | assertEquals(44, inc9(q, 1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 155 | q[0] = 42; |
| 156 | assertEquals(44.1, inc9(q, 1.1)); |
| 157 | q[0] = 42.1; |
| 158 | assertEquals(44.1, inc9(q, 1)); |
| 159 | |
| 160 | // Test deopt because of a failed map check. |
| 161 | function inc10(p) { return p.x++ } |
| 162 | var g1 = {x:0}; |
| 163 | var g2 = {y:0, x:42} |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 164 | for (var i = 0; i < 5; ++i) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 165 | g1.x = 42; |
| 166 | assertEquals(42, inc10(g1)); |
| 167 | assertEquals(43, g1.x); |
| 168 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 169 | %OptimizeFunctionOnNextCall(inc10); |
| 170 | g1.x = 42; |
| 171 | assertEquals(42, inc10(g1)); |
| 172 | assertEquals(43, g1.x); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 173 | assertEquals(42, inc10(g2)); |
| 174 | assertEquals(43, g2.x); |
| 175 | |
| 176 | // Test deoptimization with postfix operation in a value context. |
| 177 | function inc11(a) { return a[this.x++]; } |
| 178 | var g3 = {x:null, f:inc11}; |
| 179 | var g4 = [42]; |
| 180 | assertEquals(42, g3.f(g4)); |